Vancouver police are investigating after more than 60 thefts of “key components of fire suppression equipment” from the Vancouver fire department.

In a Thursday news release, police said thieves are allegedly stealing standpipe connections, which are attached to high-rise buildings. Most of the thefts are happening in downtown and the Downtown East side.

Police believe the thieves are after the metal in the standpipe connections. They said the theft of those parts is a “huge public safety,” because without them crews can’t fight high-rise fires.